Mechanically controllable valve drive and mechanically controllable valve drive arrangement

US9133737B2 · kind B2 · utility

Assignee

• KOLBENSCHMIDT PIERBURG INNOVATIONS GMBH · DE

Inventors

• Michael Breuer · Rottenburg am Neckar, DE
• Karsten Grimm · Aachen, DE

Key dates

• Filing date: Jan 24, 2012
• Grant date: Sep 15, 2015
• Expiry date: May 31, 2032

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01L13/0015
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A mechanically controllable valve drive includes a gas exchange valve on which a transmission arrangement acts via a working contour. The transmission arrangement comprises a first wheel element comprising a toothing which is connected to a camshaft, and a second wheel element comprising a toothing which acts on the gas exchange valve. The transmission arrangement is mounted to move in a cylinder head via a bearing, and is operatively connected to the camshaft and to a valve stroke adjusting device comprising an adjusting shaft. The first and second wheel elements are each mounted to rotate on the adjusting shaft and to be in a geared connection with each another via their respective toothing so that a rotation of the adjusting shaft effects a phase shift between the first and second wheel elements and so that a rotary fixing generates an oscillating movement of the first and second wheel elements.